Hard labels may encounter the following difficulties in various usage environments:
Temperature extremes:
High temperatures: may cause the label material to soften, deform, or the adhesive to fail.
Low temperatures: may make the material brittle, causing it to break or peel off.
Humidity changes:
High humidity: may cause the label to swell, deform, or the adhesive to fail.
Low humidity: may cause the material to dry out, crack, or the adhesive to become brittle.
UV exposure:
Extended exposure to sunlight may cause hard labels to fade, the material to age or degrade, affecting the readability and appearance of the label.
Chemical contact:
Acids and alkalis: may corrode the label material, causing the label to be damaged or lose its function.
Solvents and detergents: may damage the label's printing layer and adhesive, causing the label to fall off.
Mechanical wear:
Friction: Frequent friction may cause scratches or wear on the label surface, affecting the readability of the information.
Impact: Strong impact may cause the label to break or fall off.
Adhesion problems:
Uneven surfaces: Labels may not adhere well to uneven surfaces, causing the label to fall off.
Dirt and Grease: Dirt or grease on the surface may affect the adhesion of the label, making it difficult to fix the label.
Environmental pollution:
Dust and dirt: Accumulated dust and dirt may affect the clarity and function of the hard label, reducing the life and effectiveness of the label.
In response to these difficulties, choosing materials with corresponding tolerances or designing the label with appropriate protection can improve the performance and life of the hard label in various environmental conditions.